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Finding the Fourth Proportional to 7,930.88, 10,944.60 and 4,394.32

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Solution

The fourth proportional to 7,930.88, 10,944.60 and 4,394.32 is: 6,064.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.88 : 10,944.60 = 4,394.32 : x
  2. Step 2: Convert to fraction form
    7,930.88/10,944.60 = 4,394.32/x
  3. Step 3: Cross multiply
    7,930.88x = 10,944.60 × 4,394.32
  4. Step 4: Simplify right side
    7,930.88x = 48,094,074.67
  5. Step 5: Solve for x
    x = 48,094,074.67/7,930.88
  6. Step 6: Final answer
    x = 6,064.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.